package com.servlet;

import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.utils.DBUtility;
import com.utils.GenarateNumbers;

public class GenerateIDServlet extends HttpServlet {


	private static final long serialVersionUID = 3743046148026973150L;

	private Connection conn;
	private PreparedStatement pst;
	private ResultSet rs;


	/**
	 * Constructor of the object.
	 */
	public GenerateIDServlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	public void doGet(HttpServletRequest request, HttpServletResponse response)
	throws ServletException, IOException {

		this.doPost(request, response);
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
	throws ServletException, IOException {

		generateAccounts();


	}

	private void generateAccounts(){
		System.out.println("GenerateIDServlet=======>" + "genarate new account");
		for( int i = 0; i < 9; i++){
			conn = DBUtility.getMySqlConnection();
			String str = "" + GenarateNumbers.NextInt(1000000, 9999999);
			
			String sql = "insert into jiankong_account_table(userid,id,account_type,state) values(?,jiankong_account_table_seq.nextval,'normal','normal')";
			try {
				pst = conn.prepareStatement( sql );
				pst.setString( 1, str );
				
				pst.executeUpdate();
				
				
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}finally{
				closeAllConnections();
				
			}
		}
	}

	/**
	 */
	private void closeAllConnections(){

		if( rs != null ){

			try {
				rs.close();

				rs = null;
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}

		}

		if( pst != null){

			try {
				pst.close();

				pst = null;
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}

		}



	}

	public void init() throws ServletException {
		// Put your code here
	}

}
